<template>
    <transition name="fade-dialog" appear @after-enter="afterEnter">
        <div class="rx-alert" :class="{'rx-alert-open': alertShow}">
            <div class="rx-alert-close" @click="click({confirm:false})" v-if="showClose"></div>
            <div class="rx-alert-icon"></div>
            <div class="rx-alert-title" v-html="title"></div>
            <div class="rx-alert-content" v-html="text" v-if="text != ''"></div>
            <div class="rx-alert-btns" :class="btnLeft && 'btn-left'">
                <!-- :style="item.hasColor" -->
                <div class="btn"
                    v-for="(item, index) in btns"
                    :class="[item.confirm && 'primary', item.text.length <= 2 && 'text-justfity']"
                    :key="index"
                    @click="click(item)">
                    {{item.text}}
                </div>
            </div>
        </div>
    </transition>
</template>

<script type="text/ecmascript-6">
function getType(str) {
  return Object.prototype.toString
    .call(str)
    .split(" ")[1]
    .split("]")[0];
}
export default {
  props: {
    title: "",
    icon: {
      default: "warning"
    },
    btnLeft: {
      default: false
    },
    showClose: {
      default: false
    },
    text: "",
    btns: [String, Object, Array]
  },
  data() {
    return {
      alertShow: false
    };
  },
  mounted() {
    this.alertShow = true;
  },
  methods: {
    click(btn) {
      this.alertShow = false;
      setTimeout(() => {
        this.$emit("resolve", { confirm: btn.confirm, btn: btn.text });
        this.$nextTick(res => {
          this.$rxAlert.show = false;
        });
      }, 100);
    },
    afterEnter() {}
  },
  created() {
    let btnType = getType(this.btns),
      textType = getType(this.text),
      cancel = {
        text: "取消",
        // color: '',
        confirm: false
      },
      confirm = {
        text: "确定",
        // color: 'primary',
        confirm: true
      };
    // 处理没传按钮时
    if (!this.btns) {
      let btn1 = Object.assign({}, cancel),
        btn2 = Object.assign({}, confirm);
      this.btns = [btn1, btn2];
    } else if (btnType == "String") {
      let btn = Object.assign({}, confirm);
      btn.text = this.btns;
      this.btns = [btn];
    } else if (btnType == "Object") {
      for (let key in confirm) {
        if (!this.btns.hasOwnProperty(key)) {
          this.btns[key] = confirm[key];
        }
      }
      this.btns = [this.btns];
    }
    // 处理按钮颜色
    this.btns = this.btns.map((item, i, arr) => {
      if (typeof item == "string") {
        item = {
          text: item,
          // color: i == arr.length - 1 ? 'primary' : '',
          confirm: i == arr.length - 1
        };
      }
      for (let key in cancel) {
        if (!item.hasOwnProperty(key)) {
          item[key] = cancel[key];
        }
      }
      // if (item.color.indexOf('#') != -1) {
      //     item.hasColor = {'background-color': item.color, 'border-color': item.color, 'color': '#fff'};
      // }
      return item;
    });
  }
};
</script>

<style scoped lang="scss">

.rx-alert {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -60%);
  padding: 40px;
  padding-left: 82px;
  border-radius: 10px;
  box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.1);
  min-width: 420px;
  max-width: 80%;
  overflow: auto;
  background: #fff;
  opacity: 0.3;
  transition: all 0.2s linear;
  &.rx-alert-open {
    transform: translate(-50%, -50%);
    opacity: 1;
  }
  .rx-alert-close {
    position: absolute;
    top: 21px;
    right: 21px;
    width: 14px;
    height: 14px;
    cursor: pointer;
    &::before,
    &::after {
      content: "";
      position: absolute;
      top: 50%;
      left: 0;
      transform-origin: center center;
      transform: translateY(-50%) rotateZ(45deg);
      border-radius: 17px;
      width: 17px;
      height: 2px;
      background-color: #ccc;
    }
    &::after {
      transform: translateY(-50%) rotateZ(-45deg);
    }
  }
  .rx-alert-icon {
    position: absolute;
    top: 40px;
    left: 40px;
    width: 32px;
    height: 32px;
    background: url();
    font-size: 32px;
  }
  .rx-alert-title {
    padding-bottom: 10px;
    font-size: 16px;
    font-family: PingFangSC-Medium;
    color: #333;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .rx-alert-content {
    overflow: hidden;
    word-break: break-all;
  }
  .rx-alert-btns {
    padding-top: 35px;
    text-align: right;
    &.btn-left {
      text-align: left;
    }
    .btn {
      display: inline-block;
      padding: 9px 20px 8px 20px;
      border: 1px solid #c4cad7;
      border-radius: 4px;
      min-width: 80px;
      font-size: 13px;
      line-height: 13px;
      color: #666;
      cursor: pointer;
      text-align: center;
      &:not(:last-child) {
        margin-right: 10px;
      }
      &.primary {
        border-color: #5991ff;
        background-color: #5991ff;
        color: #fff;
      }
      &.text-justfity {
        padding-left: 24px;
        padding-right: 23px;
        text-align: justify;
        text-align-last: justify;
      }
    }
  }
}
.fade-dialog-enter-active,
.fade-dialog-leave-active {
  .rx-alert {
    transform: translate(-50%, -60%);
    transition: all 0.3s linear;
  }
}
.fade-dialog-enter,
.fade-dialog-leave-active {
  .rx-alert {
    transform: scale(-50%, -50%);
    transition: all 0.3s linear;
  }
}
</style>
